To Append a STEP Part to a Creo Part Model
1. Click Model > Get Data > Import with a part open.
2. In the Open dialog box, select STEP (*.stp, step) as the file type in the Type box.
3. Select a STEP file from the list of files displayed or browse and select the STEP file.
4. Click Import. The File dialog box and the Import tab open.
5. Retain the import profile in use or select an import profile from the Profile list in the File dialog box. Click Details and customize the import profile settings in the STEP — Import Profile editor.
6. Select the Customize layer filter check box and click OK in the File dialog box. The Layer Import Options dialog box opens.
7. Set the import status of layers and click OK in the Layer Import Options dialog box.
8. Select a coordinate system as reference to locate the geometry of the import feature or accept the default location on the Import tab.
9. Click on the Import tab. The STEP part is appended to the existing part model. The import log file is automatically generated in the working directory.